http://www.harborfreight.com/3-4-quarter-inch-forged-ball-point-joint-separator-99849.html%5B/quote%5DMight work.. though I don’t like the threads on the ‘screw’ portion. Threads used for anything generating high pressures should be square profile, no triangular profile. Triangular profiles tend to wear out or break very quickly under high repetitive turning stresses. Suggest liberally lubing the screw with high pressure axle grease (lithium or moly-lube) before using. Work it through the female threaded segment as well..
I have tried this type without too much success.. so I tend to use pickle-forks instead.
